203681025

素因数分解:

$3^2\times 5^2\times {\mathrm{905249}}^1$

素因数の和:905265

約数の個数: 18

約数和(自身を含む): 364815750

約数和(自身を除く): 161134725

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 905249, 2715747, 4526245, 8147241, 13578735, 22631225, 40736205, 67893675, 203681025]

約数ペア:

[(1, 203681025), (3, 67893675), (5, 40736205), (9, 22631225), (15, 13578735), (25, 8147241), (45, 4526245), (75, 2715747), (225, 905249)]